Sixfab also launched a tiny standalone NB-IoT evaluation board to test NB-IoT network and development with different platforms using a micro USB port to interface with the host platform. It is sold for $51.75 during the pre-order period, and also based on BC95-BC20, which according to Quectel BC95 product page is only suitable for the European market, while China, Korea, and Australia require a different version of the module.